The NDIS Pricing Arrangements and Price Limits, set annually by the NDIA, cap what registered providers can charge for different support categories. It's a funding document on paper, but it has a direct, practical relationship to what disability support workers actually get paid.
A provider can't charge above the capped rate for a given support category, which means their revenue per hour of support delivered is fixed regardless of what they pay you. That structurally limits how much room there is above the SCHADS Award before a provider's margins disappear — it's part of why disability support pay tends to cluster fairly closely around award rates rather than varying widely.
Participants who self-manage their NDIS funding aren't bound by the price caps in the same way — they can negotiate independently with support workers or agencies. This is part of why some independent support work (outside a registered provider) can pay differently to standard agency rates, for better or worse depending on the arrangement.
Because price caps constrain the ceiling, the biggest genuine lever for higher disability support pay is usually shift timing and support complexity, not simply picking a "better paying" provider — most registered providers are working within the same structural limits. It's worth factoring that in when comparing offers that look similar on the surface.